A chemist adds of a M sodium nitrate solution to a reaction flask. Calculate the mass in grams of sodium nitrate the chemist has added to the flask. Round your answer to significant digits.

The question is incomplete. The complete question is:

A chemist adds 390.0 mL of a 2.1M sodium nitrate solution to a reaction flask. Calculate the mass in grams of sodium nitrate the chemist has added to the flask. Round your answer to 2 significant digits.

70 grams

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

where,

n = moles of solute

= volume of solution in ml

moles of  =

Now put all the given values in the formula of molality, we get

Therefore, the mass in grams of sodium nitrate the chemist has added to the flask is 70 grams

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.

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